CN2580628Y - BGA electric connector - Google Patents
BGA electric connector Download PDFInfo
- Publication number
- CN2580628Y CN2580628Y CN02287579U CN02287579U CN2580628Y CN 2580628 Y CN2580628 Y CN 2580628Y CN 02287579 U CN02287579 U CN 02287579U CN 02287579 U CN02287579 U CN 02287579U CN 2580628 Y CN2580628 Y CN 2580628Y
- Authority
- CN
- China
- Prior art keywords
- electric connector
- loam cake
- upper cover
- bga
- pedestal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 11
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 27
- 238000004804 winding Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Images
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- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The utility model relates to a BGA electric connector, which is used for carrying on a chip mould set and causing the ship mould set and a circuit board to be electrically conducted. The BGA electric connector comprises a base seat provided with a plurality of terminal accommodating grooves, an upper cover covered on the base seat, and terminals accommodated in the terminal accommodating grooves, wherein, one end of every terminal extends towards the upper cover to be electrically contacted with the chip mould set; the other end is assembled with a eutexia contact component; the upper cover comprises an upper cover body and side walls downwards extending from both sides of the upper cover body; positions of the two side walls adjacent to the center are provided with openings with proper shape; the upper end of the opening is not higher than the bottom of the upper cover body. Consequently, the utility model not only can cause the upper cover to have definite intensity, but also can ensure that the lower surface of a tin ball positioned below the base seat has higher level degree after assembled.
Description
Technical field
The utility model relates to a kind of BGA (ball-shaped grid array) electric connector, refer in particular to a kind of loam cake both sides and be provided with suitable opening, both made loam cake have certain intensity, the tin ball lower surface that is positioned at pedestal below after guaranteeing again to assemble has the BGA electric connector than high-flatness.
Background technology
Use the connected mode of BGA and since it have the board area of taking less, can make than advantages such as low heights, become the developing direction of the electric connector that connects the chip module.But its existing in actual use BGA electric connector exists many problems.We know, include the hundreds of terminals that have the tin ball on the BGA electric connector of a connection cpu chip module, when being assembled to this BGA electric connector on the circuit board, must guarantee the weld pad excellent contact on these terminals and the circuit board.Therefore an end that will be welded in circuit board of these tin balls must keep higher evenness.This has proposed a very high requirement for the manufacturing of BGA electric connector and assembling.Particularly loam cake and pedestal are injection molded, and it is very big to form point-device fit dimension difficulty.Therefore in practice, it is fine that flatness of solder balls appears before the assembling on the pedestal in regular meeting, and after assembling and the phenomenon that evenness becomes very poor.This existing BGA electric connector shown in Figure 1 will produce such problem.Because the two side 3 of this BGA electric connector 1 loam cake 2 forms " ㄇ " shape structure with body 4, thereby can't cooperate pedestal 5 and suitably distortion on fore-and-aft direction.Therefore, as showing, when a little error appears in the size that cooperates with pedestal 5 on the loam cake 2, make the pedestal 5 front and back ends warpage (as Fig. 3) that makes progress probably, influence the evenness of tin ball 6 and cause BGA electric connector 1 and circuit board 7 loose contacts as Fig. 2.For addressing the above problem, BGA electric connector shown in Figure 4 has appearred.This BGA electric connector is provided with the opening 10 of a up/down perforation at pedestal 8 sidewalls 9, eliminates the error that fit dimension brings with the elasticity that improves loam cake 8.But this has also produced another problem simultaneously, and promptly in practical operation, easy fracture brings the difficulty in the production to loam cake 8 because intensity is too small.Therefore, should make loam cake have certain intensity, guarantee again to keep the tin ball of pedestal lower end to have than high-flatness with pedestal assembling back, this is the contradiction that industry needs to be resolved hurrily.
Summary of the invention
The purpose of this utility model is to provide a kind of BGA electric connector, and it both can make loam cake have certain intensity, can guarantee again to keep the tin ball of pedestal lower end to have than high-flatness with pedestal assembling back.
BGA electric connector provided by the utility model, be used to accept the chip module and chip module and circuit board are electrically conducted, it comprises the pedestal that is provided with the plurality of terminals accepting groove, be covered on the loam cake of pedestal top and be contained in the interior terminal of above-mentioned terminal containing slot, this terminal one end extends electrically to contact with the chip module to loam cake, the other end then winding has the fusibility contact assembly, the sidewall that this loam cake comprises a body and extends downwards from the body both sides, this two side is provided with suitable shaped aperture near the position of central authorities, and the upper end of this opening is lower than the bottom surface of body, thereby both made loam cake have certain intensity, and can guarantee again to keep the tin ball of pedestal lower end to have than high-flatness with pedestal assembling back.
Caption
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the combination stereogram of known BGA electric connector.
Fig. 2 is the schematic side view before known BGA electric connector loam cake and the pedestal assembling.
Fig. 3 is the schematic side view after known BGA electric connector loam cake and the pedestal assembling.
Fig. 4 is the combination stereogram of another known BGA electric connector.
Fig. 5 is the combination stereogram of the utility model BGA electric connector.
Fig. 6 is the schematic side view before the utility model BGA electric connector loam cake and the pedestal assembling.
Fig. 7 is the schematic side view after the utility model BGA electric connector loam cake and the pedestal assembling.
Fig. 8 is the front view of the utility model BGA electric connector.
Fig. 9 is the stereogram of another Embodiment B of the utility model GA electric connector loam cake.
Embodiment
Shown in Fig. 5,6,7,8, the utility model BGA electric connector system is used for accepting cpu chip module (figure mark) and makes the chip module and circuit board (among the figure mark) formation electrically conducts, and it comprises a pedestal 20 that is provided with plurality of terminals accepting groove 21, be covered on the loam cake 30 of pedestal 20 tops and be contained in the interior terminal 40 of above-mentioned terminal containing slot 21.This BGA base of electric connector 20 also is equiped with an actuator 50 with loam cake 30 1 ends, so that both can relatively move.Wherein, these terminal 40 1 ends extend upward electrically to contact with the chip module, the other end then is provided with tin ball 41, this loam cake 30 comprises body 31 and the sidewall 32 that is extended by the body both sides downwards, this sidewall 32 is provided with an inside recessed curved portions 33 near the position of central authorities, be provided with down an opening 34 at curved portions 33 middle positions, so that loam cake 30 has certain elasticity at fore-and-aft direction, therefore, as shown in Figure 6, even the fit dimension with pedestal 20 on the loam cake 30 has a little error, when assembling, also can produce suitable distortion to cooperate the size (as Fig. 7) of pedestal 20, thereby guarantee that tin ball 41 lower surfaces that are positioned at pedestal 20 bottoms have certain evenness, avoid the loose contact of BGA electric connector and circuit board.And as shown in Figure 8, the upper end 341 of this opening 34 flushes with the bottom surface 311 of body 31, thereby can guarantee that loam cake 30 has certain intensity, is unlikely fracture when transportation and assembling.In addition, the setting of curved portions 33 also can be extracted the cpu chip module easily from the BGA electric connector.
The utility model also can be designed to form shown in Figure 9.The sidewall 32 ' that the loam cake 30 ' of this BGA electric connector comprises body 31 ' and extends downwards along both sides, this sidewall 32 ' is provided with down an opening 34 ', this opening 34 ' De Shang Baking 341 ' is lower than the bottom surface 311 ' of body 31 ', this body 31 ' is provided with a rake 35, thereby reaches and the identical effect of a last Embodiment B GA electric connector.
Certainly, the utility model also can take other different frame mode to reach same effect, and these simply change or be replaced into industry institute thinks to reach easily, does not just enumerate one by one here.In addition, the utility model also can be used on the BGA electric connector of other type, makes on the BGA electric connector that loam cake and pedestal relatively move as adopting joystick.
Claims (4)
1. BGA electric connector, be used to accept the chip module and chip module and circuit board are electrically conducted, it comprises the pedestal that is provided with the plurality of terminals accepting groove, be covered on the loam cake of pedestal top and be contained in terminal in the above-mentioned terminal containing slot, the sidewall that this loam cake comprises a body and extends downwards from the body both sides, each terminal one end extends electrically to contact with the chip module to loam cake, and the other end then winding has the fusibility contact assembly; It is characterized in that: its loam cake two side is provided with suitable shaped aperture near the position of central authorities, and the upper end of this opening is not higher than the bottom surface of body.
2. BGA electric connector as claimed in claim 1 is characterized in that: its loam cake two side is provided with an inside recessed curved portions in addition.
3. BGA electric connector as claimed in claim 1 is characterized in that: its loam cake body both sides are provided with a rake in addition.
4. as claim 1,2 or 3 described BGA electric connectors, it is characterized in that: its fusibility contact assembly is the tin ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02287579U CN2580628Y (en) | 2002-11-23 | 2002-11-23 | BGA electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02287579U CN2580628Y (en) | 2002-11-23 | 2002-11-23 | BGA electric connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2580628Y true CN2580628Y (en) | 2003-10-15 |
Family
ID=33747815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02287579U Expired - Lifetime CN2580628Y (en) | 2002-11-23 | 2002-11-23 | BGA electric connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2580628Y (en) |
-
2002
- 2002-11-23 CN CN02287579U patent/CN2580628Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NO. 81, HAOTING ROAD(WEST), QIFU HOUSING ESTATE, Z Free format text: FORMER NAME OR ADDRESS: * SUITE, NO. 9, STREET 3, DISTRICT A, QIFU HOUSING ESTATE, GUANGZHOU CITY, GUANGDONG PROVINCE |
|
| CP03 | Change of name, title or address |
Patentee address after: Panyu District zhongcunzhen Qifuxincun villa in Guangzhou City West of Guangdong Province, No. 81 Patentee address before: Guangdong city of Guangzhou Province, Clifford A District 3 Street 9. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121123 Granted publication date: 20031015 |